The present invention relates to a composition for lowering blood glucose levels and a method for preparing the same, and more particularly to a composition for reducing blood glucose levels by using a gondola extract as an active ingredient, and more particularly to a method for producing a gondola extract by using water, ethanol, Wherein the gondola extract is a mixture of water, ethanol or a mixed plant extract of water and ethanol, wherein the mixed plant is composed of angora, larana and triangles, and the gondola The extract is mixed with the mixed plant extract to improve the alpha glucosidase inhibitory activity and the alpha amylase inhibitory activity to more effectively reduce the increase in the blood sugar in the body. The mixed plant extract is inoculated with the lactic acid bacterium and fermented and aged, Is contained in the gonad extract to inhibit the activity of inhibiting alpha glucosidase The present invention relates to a composition for lowering blood glucose levels and a method for producing the composition, which comprises a gonadal extract as an active ingredient, wherein the gonadal extract is effective to reduce the increase of the blood sugar level in the body by improving the pamoalase inhibitory activity.The present invention also provides a composition for lowering blood glucose levels, comprising a gonad extract as an active ingredient, wherein the gonad extract contains a mixed plant extract extracted with water, ethanol or a solvent in which water and ethanol are mixed, , Fermented and fermented mixed plant fermented product obtained by inoculating the mixed plant extract with lactic acid bacterium and inoculating the fermented product with the gonad extract.The present invention also relates to a method for preparing a sample, comprising the steps of: (a) preparing a sample by drying and finishing a gonade outpost, (10) mixing the sample with water, ethanol or a solvent in which water and ethanol are mixed (S20) of extracting th
